(Solved): a) A proton moving at a speed of \( 5.35 \times 10^{6} \mathrm{~m} / \mathrm{s} \) enters a set of ...

a) A proton moving at a speed of \( 5.35 \times 10^{6} \mathrm{~m} / \mathrm{s} \) enters a set of horizontal parallel plates. The electric field between the plates is \( 3.00 \times 10^{4} \mathrm{~N} / \mathrm{C} \). If the proton moves a vertical distance of \( 6.10 \mathrm{~mm} \) towards the negative plate, what is the horizontal distance the proton travels? *Ignore gravitational effects ( 2 marks) b) The motion of the proton between the plates is described as parabolic. Explain why. ( 2 marks)